Code point
U+203F
Glyph appearance depends on your fonts.
U+203F
PcU+203F UNDERTIE is a Unicode 16.0.0 character in the Connector Punctuation category. It belongs to the General Punctuation block.
Choose the representation you need, then copy its value.
U+203F
8255
‿
‿
E2 80 BF
203F
0000203F
%E2%80%BF
\u203F
\u203F
\u203F
\203F